fixedPointIteration('Problem3a',1,10^-5,100)
fixedPointIteration('Problem3b',1,10^-5,100)
fixedPointIteration('Problem3c',1,10^-5,100)
fixedPointIteration('Problem3d',1,10^-5,100)

% The order of fastest to slowest convergence is b,d,a. c) does not
% converge.